This Day, That Year – December 15

Gustave Eiffel was a French engineer and architect born on this day in 1832. He is best known for the construction of the Eiffel Tower.

Did you know that:

• The State of Holland granted a patent for a windmill with a crankshaft on this day in 1593
• German Astronomer, Simon Marius was the first to observe the Andromeda galaxy through a telescope on this day in 1612
• A patent was granted to Kenneth Olsen for magnetic core memory (first used in a minicomputer) on this day in 1964